CN105634682A - Method and device for adjusting and scheduling CQI - Google Patents
Method and device for adjusting and scheduling CQI Download PDFInfo
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- CN105634682A CN105634682A CN201410584149.9A CN201410584149A CN105634682A CN 105634682 A CN105634682 A CN 105634682A CN 201410584149 A CN201410584149 A CN 201410584149A CN 105634682 A CN105634682 A CN 105634682A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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Abstract
The present invention provides a method and device adjusting and scheduling CQI, and relates to the field of communication. The method comprises: firstly, a serving cell informs and receives ACK and NACK obtained by decoding through a non-serving cell uplink high-speed specific entity control channel HS-DPCCH; and secondly, the serving cell adjusts and schedules CQI according to received ACK and NACK information obtained by decoding of the non-serving cell. The present invention further provides a device for adjusting and scheduling CQI. The device comprises an information receiving unit and an adjusting and scheduling CQI unit. The method and device for adjusting and scheduling CQI are able to reduce the influences of uplink feedback errors on a downlink speed so as to ensure good communication when the soft handover is unbalanced up and down.
Description
Technical field
The present invention relates to moving communicating field, particularly to a kind of method adjusting scheduling CQI and device.
Background technology
When the wireless network soft handover of cdma system, the selection of Serving cell is to judge according to descending signal quality. After Serving cell is determined, upper and lower provisional capital is to be undertaken by the service link of Serving cell. ACK, NACK feedback of HS-PDSCH (High-Speed Physical Downlink Shared Channel) and CQI demodulate the UE up-high speed reported exclusive entity control passage HS-DPCCH information by Serving cell to obtain. In some switch areas, the downlink signal quality of Serving cell is good, but up quality is not necessarily best, thus there will be certain up-downgoing uneven, the passage HS-DPCCH ACK obtained is controlled by the exclusive entity of Serving cell up decoding up-high speed, NACK and CQI arises that substantial amounts of mistake: ACK is decoded into NACK can cause the UE DUP surveyed, NACK solution becomes ACK can cause the re-transmission of rlc layer, CQI solves mistake can cause that the data block of scheduling and real channel condition are not inconsistent, and serious is all affected downstream rate by these.
Summary of the invention
It is an object of the invention to provide and a kind of adjust the scheduling method of CQI and device, it may be possible to solve downlink signal quality during the upper and lower trade imbalance of described service area during switching very well.
For solving above technical problem, the present invention adopts the following technical scheme that
First aspect, the present invention provides a kind of method adjusting scheduling CQI, including: first, judge whether Serving cell is in up-downgoing unbalanced state, described up-downgoing unbalanced state refers to, for Serving cell, downlink signal quality is fine, quality of uplink signal is very poor, the ACK that Serving cell up decoding HS-DPCCH (the exclusive entity of up-high speed controls passage) obtains, there is substantial amounts of mistake in NACK and CQI: ACK is decoded into NACK, NACK solution becomes ACK meeting, and CQI solves mistake can cause that the block of scheduling and real channel condition are not inconsistent.
Secondly, the ACK of the described HS-DPCCH of non-service cell decoding, nack message described in described cell receiver; If it is determined that described Serving cell is in the unbalanced state of up-downgoing, then notified non-service cell decoding HS-DPCCH channel by RNC (radio network controller) or directly notified by described Serving cell, and starting to receive ACK and the nack message of non-service cell decoding.
Again, described Serving cell obtains according to the decoding of described non-service cell received ACK and nack message adjustment scheduling CQI.
Described Serving cell obtains ACK and the nack message of described non-service cell decoding. When above-mentioned receive ACK time raise CQI, lower CQI when receiving NACK.
Finally, Serving cell is scheduling data block according to the CQI after adjusting. After Serving cell adjusts CQI, dispatch data according to chunking algorithm and select suitable transmission block
Second aspect example of the present invention provides a kind of device adjusting scheduling CQI:
Its device adjusting scheduling CQI mainly includes information receiving unit and adjusts scheduling CQI unit;
Described upper and lower uneven judging unit, SIR or SIRerror being controlled passage HS-DPCCH by the exclusive entity of up-high speed is judged;
Described reception decoding information elements, if it is determined that described Serving cell is in the unbalanced state of up-downgoing, then notified non-service cell decoding HS-DPCCH channel by RNC (radio network controller) or directly notified by described Serving cell, and starting to receive ACK and the nack message of non-service cell decoding;
Described adjustment scheduling unit, described Serving cell obtains ACK and the nack message of described non-service cell decoding. Raise the CQI of a fixed step size as the above-mentioned ACK of receiving, when receiving NACK, lower the CQI of certain step-length. Finally, Serving cell is scheduling data block according to the CQI after adjusting. After Serving cell adjusts CQI, dispatch data according to chunking algorithm and select suitable transmission block
Compared with prior art, the program is passed through, it is possible to solve very well downlink signal quality during the upper and lower trade imbalance of described service area during switching. Utilize reliable ACK, the NACK result that non-service cell decodes just can be accurately obtained the result that terminal is really fed back, also can adjust the CQI of scheduling accurately.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or existing technical scheme in the art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below.
Fig. 1 is the schematic diagram of a kind of method adjusting scheduling CQI provided by the invention;
A kind of method implementing procedure figure adjusting scheduling CQI that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is a kind of device adjusting scheduling CQI provided by the invention;
Fig. 4 provides up-downgoing imbalance figure for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete description, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.
As it is shown in figure 1, the present invention provides a kind of schematic diagram adjusting scheduling CQI.
The method of the first described upper and lower unbalanced state of judgement Serving cell is to be judged by SIR or SIRerror of HS-DPCCH (the exclusive entity of up-high speed controls passage), if specifically Serving cell SIR is less than predetermined threshold value 1, such as SIR is less than 0; Or SIR and given SIRerror is more than pre-determined threshold 2, and such as SIR more than 4, then judges that this community is in up-downgoing unbalanced state.
After judging current service cell up-downgoing imbalance, Serving cell notice non-service cell when decoding to obtain, ACK and nack message, then adjust CQI according to ACK and the NACK obtained. The described Serving cell notice non-service cell decoding exclusive entity of up-high speed controls passage HS-DPCCH, and receives decoded ACK and the NACK obtained; Described Serving cell adjusts CQI according to ACK and the NACK obtained, and dispatches CQI data block according to the CQI after adjusting. Described Serving cell adjusts CQI according in the following manner: described Serving cell often receives an ACK and raises CQI; When described Serving cell often receives NACK, lower CQI.
The following is and provide a specific embodiment according to technical scheme.
As in figure 2 it is shown, the present invention provides a kind of method adjusting scheduling CQI, including:
S201: Serving cell obtains SIR and the SIRerror information of this cell control channels,
S202: according to SIR and SIRerror, Serving cell judges whether community is in up-downgoing unbalanced state;
If Serving cell SIR is less than predetermined threshold value 1, such as SIR is less than 0; Or SIR and given SIRerror value are more than pre-determined threshold 2, and such as SIRerror is more than 4; Then judge that this community is in up-downgoing unbalanced state;
When imbalance, or RNC direct by Serving cell notifies that non-service cell decoding HS-DPCCH information obtains ACK and NACK indirectly;
S203: the ACK of the HS-DPCCH of cell receiver non-service cell demodulation, NACK, information;
If Serving cell is in the unbalanced state of up-downgoing, then notice non-service cell decoding HS-DPCCH, receive the information of ACK and the NACK of non-service cell decoding simultaneously;
S204: Serving cell adjusts scheduling CQI according to ACK, NACK that non-service cell reports;
Serving cell receives non-service cell and reports ACK then CQI to be raised step-length A, such as raises 0.1; If Serving cell receives non-service cell and reports NACK, CQI is lowered step-length B, such as lowers 0.9; If Serving cell receives non-service cell and reports DTX, do not adjust CQI, and do not carry out HARQ re-transmission further according to ACK and the NACK of Serving cell.
S205: Serving cell is scheduling data block according to the CQI after adjusting.
After Serving cell adjusts CQI, dispatch data according to chunking algorithm and select suitable transmission block.
Including lower uneven judging unit in figure 3, the exclusive entity of up-high speed controls passage and judges that this community is in up-downgoing unbalanced state by SIR or SIRerror of HS-DPCCH;
Described reception decoding information elements, if it is determined that described Serving cell is in the unbalanced state of up-downgoing, then notified non-service cell decoding HS-DPCCH channel by radio network controller (RNC) or directly notified by described Serving cell, and starting to receive ACK and the nack message of non-service cell decoding;
Described adjustment scheduling unit, described Serving cell obtains ACK and the nack message adjustment CQI data of described non-service cell decoding, then dispatches data according to chunking algorithm and selects suitable transmission block
Additionally the present invention illustrates upper and lower unbalanced state in conjunction with Fig. 4, good region is covered in current service cell downstream transmission signals, UE current service cell upward signal might not be got well, and is reported to ACK and the NACK that non-service cell decodes can reach adjust CQI and dispatch data block by UE.
Described above illustrate and describes a preferred embodiment of the present invention, but as previously mentioned, it is to be understood that the present invention is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and in invention contemplated scope described herein, can be modified by the technology of above-mentioned instruction or association area or knowledge. And the change that those skilled in the art carry out and change are without departing from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (6)
1. the method adjusting scheduling CQI, is applied to Serving cell and is in nonequilibrium condition, it is characterised in that described method includes:
A () described Serving cell notice non-service cell decoding exclusive entity of up-high speed controls passage HS-DPCCH, and receive decoded ACK and the NACK obtained;
B () described Serving cell adjusts CQI according to ACK and the NACK obtained, and dispatch CQI data block according to the CQI after adjusting.
2. the method for claim 1, it is characterised in that in described step b, described Serving cell adjusts CQI according in the following manner: described Serving cell often receives an ACK and raises CQI; When described Serving cell often receives NACK, lower CQI.
3. the device adjusting scheduling CQI, it is characterised in that including: decoding information elements and adjustment scheduling CQI unit, wherein:
For described Serving cell, described decoding information elements, notifies that up-high speed exclusive entity in non-service cell controls passage HS-DPCCH and decodes ACK and NACK, and receives decoded ACK and the NACK obtained;
Described adjustment dispatches CQI unit, adjusts CQI for described Serving cell according to ACK and the NACK obtained, and dispatches CQI data block according to the CQI after adjusting.
4. device as claimed in claim 3, it is characterised in that described decoding information elements adjusts CQI according in the following manner: described Serving cell often receives an ACK and raises CQI; When described Serving cell often receives NACK, lower CQI.
5. device as claimed in claim 4, it is characterized in that, described device farther includes uneven judging unit up and down, for SIR or SIRerror being controlled passage HS-DPCCH by the exclusive entity of up-high speed, it judges that this community is in up-downgoing unbalanced state.
6. the device as described in any one of claim 3 to 5, it is characterised in that described device is applied in wireless base station Nodeb.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410584149.9A CN105634682B (en) | 2014-10-27 | 2014-10-27 | A kind of method and device of adjustment scheduling CQI |
| PCT/CN2015/091865 WO2016066013A1 (en) | 2014-10-27 | 2015-10-13 | Cqi adjusting and scheduling method and device |
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| CN201410584149.9A CN105634682B (en) | 2014-10-27 | 2014-10-27 | A kind of method and device of adjustment scheduling CQI |
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| CN105634682A true CN105634682A (en) | 2016-06-01 |
| CN105634682B CN105634682B (en) | 2019-11-05 |
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Cited By (2)
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| CN108259125A (en) * | 2016-12-29 | 2018-07-06 | 中国移动通信集团浙江有限公司 | Downlink CQI self-adapting regulation methods and device |
| CN110268652A (en) * | 2017-03-07 | 2019-09-20 | 华为技术有限公司 | Method and device for the channel quality instruction adjustment in wireless network based on switching perception |
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Also Published As
| Publication number | Publication date |
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| CN105634682B (en) | 2019-11-05 |
| WO2016066013A1 (en) | 2016-05-06 |
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